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Simple and Compound Machines
S1803
- When "Hardware Hal" holds a "Simple and Compound Machines Sale" he demonstrates to his assistants the six simple machines: the lever, wedge, inclined plane, pulley, wheel & axle, and screw. Shows how these machines make work easier by changing force, direction, or distance. Machines in action and computer graphics illustrate the principles of work,... |
3-8 |
$39.95 |
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Simple Machines
S1404
- When a group of children attempt to move their play fort, they realize that six simple machines make the work much easier by changing either force or distance. They learn to identify real-world examples of simple machines including the lever, pulley, wedge, wheel and axle, inclined plane, and screw. |
K-3 |
$29.95 |
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Understanding Maps / Key to Everywhere
G9003
- Relate the three-dimensional world in which we live to the two-dimensional world of maps by taking a plane ride over a neighborhood and translating the view onto a flat map. Demonstrates points on a compass, how different types of maps show different things, what symbols and scales are, and what a globe is. |
K-2 |
$29.95 |
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